by Parsonnet, Julie, Harris, Ryan A, Hack, Howard M, Owens, Douglas K
Published in The Lancet (British edition) (20.07.1996)

by Hack, Howard M.
Published in Gastrointestinal endoscopy (01.01.1996)

by Hack, Howard M.
Published in Gastrointestinal endoscopy (01.01.1996)

by Demirtürk, Levent, Hulagu, Saadeddin, Altin, Mehmet, Uçmakli, Ergün, Dumanhan, Levent, Özel, Melih, Hack, Howard M.
Published in Gastrointestinal endoscopy (1996)

by Hack, Howard M., Parsonnet, Julie, Triadafilopoulos, George
Published in Gastrointestinal endoscopy (01.05.1994)

by McDermott, M L, Edelhauser, H F, Hack, H M, Langston, R H
Published in Ophthalmic surgery (01.10.1988)